EK Cat Crap Spray On Sunglass Anti Fog Lens Cleaner is an easy to apply version of the classic Cat Crap paste. Spray a bit on your glasses and wipe with a soft cloth to clean while applying an anti fog treatment. 1 bottle lasts for dozens of treatments. Anti fog treatment and cleaner. Safe for all lenses. Easy to use. One bottle lasts for dozens of treatments. 1 fl. oz. bottle.